[INFO] fetching crate kdb 0.3.0...
[INFO] checking kdb-0.3.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate kdb 0.3.0 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate kdb 0.3.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kdb 0.3.0
[INFO] finished tweaking crates.io crate kdb 0.3.0
[INFO] tweaked toml for crates.io crate kdb 0.3.0 written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] crate crates.io crate kdb 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70056cd9b45f63987c809e80c15c9a144b5b6187792f4ba80e954690fb5a555a
[INFO] running `Command { std: "docker" "start" "-a" "70056cd9b45f63987c809e80c15c9a144b5b6187792f4ba80e954690fb5a555a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70056cd9b45f63987c809e80c15c9a144b5b6187792f4ba80e954690fb5a555a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70056cd9b45f63987c809e80c15c9a144b5b6187792f4ba80e954690fb5a555a", kill_on_drop: false }`
[INFO] [stdout] 70056cd9b45f63987c809e80c15c9a144b5b6187792f4ba80e954690fb5a555a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a15067c43d5a7562b4ccc4d6fa74008c4c6a054e111a158b09774919361765ba
[INFO] running `Command { std: "docker" "start" "-a" "a15067c43d5a7562b4ccc4d6fa74008c4c6a054e111a158b09774919361765ba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling kdb v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking array_iterator v1.3.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/serialization.rs:51:63
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let bytes = b9_serialize(SerializationMode::InProc, l.as_ref()).unwrap();
[INFO] [stdout]    |                                                             --^^^^^^--
[INFO] [stdout]    |                                                             | |
[INFO] [stdout]    |                                                             | cannot infer type for type parameter `T` declared on the trait `AsRef`
[INFO] [stdout]    |                                                             this method call resolves to `&T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `kbox::KBox<list::List<i32>>: AsRef<_>`
[INFO] [stdout] help: use the fully qualified path for the potential candidates
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let bytes = b9_serialize(SerializationMode::InProc, <kbox::KBox<list::List<T>> as AsRef<any::Any>>::as_ref(l)).unwrap();
[INFO] [stdout]    |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 51 |         let bytes = b9_serialize(SerializationMode::InProc, <kbox::KBox<atom::Atom<T>> as AsRef<any::Any>>::as_ref(l)).unwrap();
[INFO] [stdout]    |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 51 |         let bytes = b9_serialize(SerializationMode::InProc, <kbox::KBox<Dictionary> as AsRef<any::Any>>::as_ref(l)).unwrap();
[INFO] [stdout]    |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 51 |         let bytes = b9_serialize(SerializationMode::InProc, <kbox::KBox<Table> as AsRef<any::Any>>::as_ref(l)).unwrap();
[INFO] [stdout]    |                                                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout]      and 1 other candidate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kdb` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a15067c43d5a7562b4ccc4d6fa74008c4c6a054e111a158b09774919361765ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a15067c43d5a7562b4ccc4d6fa74008c4c6a054e111a158b09774919361765ba", kill_on_drop: false }`
[INFO] [stdout] a15067c43d5a7562b4ccc4d6fa74008c4c6a054e111a158b09774919361765ba
